Flush tank having flush water adjusting device

ABSTRACT

A flush tank includes a water housing having an outlet port, a device for controlling the inward flow of the water into the housing, a valve received in the housing for selectively engaging with the outlet port, a link coupled to the valve for disengaging the valve from the outlet port by such as a lever, and a float attached to the link for controlling the disengagement of the valve from the outlet port. A stop is adjustably secured to the link for adjusting or limiting the upward movement of the float relative to the link and for adjusting the outward flow of the flush water.

BACKGROUND OF THE INVENTION

[0001] 1. Field of the Invention

[0002] The present invention relates to a flush tank, and moreparticularly to a flush tank having a structure or a device foradjusting the outward flow of the flush water for the flush tank.

[0003] 2. Description of the Prior Art

[0004] Typical flush tanks comprise an outlet port formed in the bottomof a tank, a valve pivotally secured to the tank for selectivelyengaging with the outlet port and for enclosing the outlet port, and afloat engaged with the valve for supporting the valve at the openingposition when the valve is opened by an actuator lever. The float may bedisengaged from the valve only when the water level in the tank islowered to the lowest position when the predetermined quantity of theflush water is fully flowing out of the flush tank. The outward flow ofthe flush water may not be adjusted.

[0005] The present invention has arisen to mitigate and/or obviate theafore-described disadvantages of the conventional flush tanks.

SUMMARY OF THE INVENTION

[0006] The primary objective of the present invention is to provide aflush tank including a device for adjusting the outward flow of theflush water for the flush tank.

[0007] In accordance with one aspect of the invention, there is provideda flush tank comprising a housing for receiving flushing water andincluding an outlet port, means for controlling an inward flow of thewater into the housing, a valve received in the housing for selectivelyengaging with and blocking the outlet port, a link coupled to the valvefor disengaging the valve from the outlet port, means for actuating thelink to disengage the valve from the outlet port, and a float attachedto the link for controlling the disengagement of the valve from theoutlet port.

[0008] A device is further provided for adjusting the float relative tothe link and includes a stop engaged on the link for limiting an upwardmovement of the float relative to the link.

[0009] A weight is selectively attached to the link. The valve includesa casing provided therein, the weight may be selectively received in thecasing of the valve.

[0010] Further objectives and advantages of the present invention willbecome apparent from a careful reading of a detailed descriptionprovided hereinbelow, with appropriate reference to accompanyingdrawings.

BRIEF DESCRIPTION OF THE DRAWINGS

[0011]FIGS. 1 and 2 are cross sectional views illustrating the operationof a flush tank in accordance with the present invention;

[0012]FIG. 3 is a perspective view of the flush water adjusting devicefor the flush tank:

[0013]FIG. 4 is an exploded view of the flush water adjusting device forthe flush tank; and

[0014]FIG. 5 is a perspective view similar to FIG. 3. illustrating theother embodiment of the flush water adjusting device for the flush tank.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

[0015] Referring to the drawings, and initially to FIGS. 1-4, a flushtank in accordance with the present invention comprises a housing 80 forreceiving the flush water 82 and including an outlet portion 81 formedor provided in the bottom thereof. A valve 10 includes one or more arms12 extended therefrom for pivotally securing to the housing 80 with apivot shaft is or the like, for allowing the valve 10 to be rotatedrelative to the housing 80 and to be moved to engage with and disengagefrom the outlet port 81. A tube 9 is secured in the housing 80 andcoupled to the water reservoir. A control device 82 is disposed on topof the tube 9, and a float 83 is coupled to the control device 82 foractuating the control device 82 to control the inward flow of the waterinto the housing 80. A lever 7 has one end pivotally secured to thehousing 80 with a pivot pin 71, and a knob 6 secured to the lever 7 forrotating the lever 7 about the pivot pin 71. The other end of the lever7 is coupled to the ear 13 of the valve 10 with a link 6, such as achain or the like for actuating and operating the valve 10. The abovedescribed structure of the flush tank is typical and will not bedescribed in further details.

[0016] The flush water adjusting device for the flush tank includesanother float 3 having an aperture 31 formed therein for threading andreceiving the link 5, and for allowing the float 3 to be moved up anddown along the link 5 by the water 82 received in the housing 80. A stop4, such as a clip or the like, is engaged or secured to the link 5 andlocated above the float 3 for engaging with the float 3 and for limitingthe floating or the upward moving of the float 3 along the link 5, andthus for determining the actuating or the opening and the enclosing ofthe valve 10 against the outlet port 81. The stop 4 may be easilyadjusted along or relative to the link 5 for adjusting the position ofthe float 3 relative to the link 5 and for adjusting the outward flow ofthe flush water through the outlet port 81. A weight 2 includes anorifice 21 formed therein for threading and receiving the link 5. Theweight 2 may be selectively engaged onto the link 5 in order todetermine the size or the volume of the float 3 or to determine theposition of the float 3 relative to the link 5.

[0017] Referring next to FIG. 5, the valve 10 may includes a casing 11provided therein for selectively receiving the weight 8 or the like.

[0018] In operation, as shown in FIGS. 1 and 2, the valve 10 may bedisengaged from the outlet port 81 (FIG. 2) by the lever 7 for allowingthe water 82 to flow out of the housing 80 via the port 81 for flushingpurposes. The valve 10 may be maintained in the open position relativeto the outlet port 81 by the float 3. When the water S2 is lowered to asuitable water level, the float 3 may be lowered to lower the valve 10to engage with and to enclose the outlet port 81 (FIG. 1). The positionof the float 3 relative to the link 5 may be adjusted by the stop 4which may be easily changed to the other position relative to the link5. The engagement of the weight 2, 8 to the link 5 or to the valve 10 isoptional.

[0019] Accordingly, the flush tank in accordance with the presentinvention includes a device for adjusting the outward flow of the flushwater for the flush tank.

[0020] Although this invention has been described with a certain degreeof particularity, it is to be understood that the present disclosure hasbeen made by way of example only and that numerous changes in thedetailed construction and the combination and arrangement of parts maybe resorted to without departing from the spirit and scope of theinvention as hereinafter claimed.

I claim:
 1. A flush tank comprising: a housing for receiving flushingwater and including an outlet port, means for controlling an inward flowof the water into said housing, a valve received in said housing forselectively engaging with and blocking said outlet port, a link coupledto said valve for disengaging said valve from said outlet port, meansfor actuating said link to disengage said valve from said outlet port,and a float attached to said link for controlling the disengagement ofsaid valve from said outlet port.
 2. The flush tank according to claim 1further comprising means for adjusting said float relative to said link.3. The flush tank according to claim 2, wherein said adjusting meansincludes a stop engaged on said link for limiting an upward movement ofsaid float relative to said link.
 4. The flush tank according to claim 1further comprising a weight selectively attached to said link.
 5. Theflush tank according to claim 1, wherein said valve includes a casingprovided therein, said flush tank further includes a weight received insaid casing of said valve.